#!/bin/bash
threads=10
cat /dev/urandom | tr -dc 'A-Z0-9' | fold -w 6 | \
while read uuid
do
   url=`wget -qO - http://files.mail.ru/$uuid | grep -v "linkcode" | grep -Po "$
   if [ -z "$url" ]; then
      echo "Not found $uuid"
   else
      wget -c $url
   fi
done